Gas burner for well-drilling forges



E. A. CLARK,

GAS BURNER FOR WELL DRILLING FORGES.

- APPLICATION FILED MAR. 24, I921. 1,406,346.

Patented Feb. 14, 1922.

, QI'IIIIIIII I UNITED STATES EARLE A. CLARK, 0F TULSA, OKLAHOMA.

GAS BURNER FOR WELL-DRILLING FORGES.

Specification of Letters Patent.

Patented Feb. 14, 1922.

Application filed March 24, 1921. Serial No. 455,253.

To all whom it may concern Be it known that I, EARLE A. CLARK, a citizen of the United. States, residing at Tulsa, in the county of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in Gas Burners for NVell-Drilling Forges; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in gas burners for well drilling forges, and its object is to produce a burner in which the air and gas will be completely mixed before passing out of the burner structure to the point of ignition.

Heretofore in the construction of most of the burners of this kind, it has been neces sary to have them enter the forge from the front, and as a result, the gas connection was knocked off, or injured by the workmen with the heavy bits to be heated.

This danger is eliminated in the case of the present burner, which enters the forge at the side.

Another object which I have in view, is to produce a burner capable of generating a higher degree of heat, than those formerly in use.

With the foregoing objects outlined and with other objects in View, the invention consists in the novel features hereinafter de scribed in detail, illustrated in the accompanying drawing, and more particularly pointed out in the appended claims.

In the accompanying drawings;

Fig. 1 illustrates a front view of a forge, showing the burner in dotted lines.

Fig. 2 is a view taken on line 2-2 of Fig. l and shows a cross section of the burner.

Fig. 3 is a view taken on line 33 of Fig. 1 and showing an end view of the burner, and

Fig. f is a enlarged cross sectional view of a portion of Fig. 2 showing the oblique walls of the perforations of the air con ducting pipe.

In the drawings, 1 represents the outer pipe of the burner, and is provided with a branch or gas inlet pipe 4., and connected to any desired type of blower at 8. Within the pipe 1 is an air or mixing conduit 2, which is provided with perforations 6 preferably arranged spirally around its circumference. These perforations, as shown in Fig. 4, are preferably formed with oblique walls, to facilitate the suction of the gas into the mixing conduit.

At each of its ends, the conduit 2 expands and is connected to the outer pipe 1 as at X, forming a space or closed chamber 5, be tween the two pipes into which the gas inlet pipe 4 opens.

The extension 7 is preferably arranged at right angles to the pipes 1 and 2, and serves to conduct the mixture of gas and air to the point of ignition 9 in the base of the forge entering the same at one side thereof. 10 represents the top portion of the forge, and is adapted to receive the drilling tools for heating purposes.

The operation of the device is apparent. A blast of air is introduced through pipe 2, entering at the point 8, the pressure being generated by a steam or other blower (not shown). At the same time, gas is admitted through the inlet pipe 4, to the chamber 5, and by means of the spirally arranged obliquely disposed perforations 6, acted upon by the current of air, is drawn in and mixed with the air in the pipe 2, and passes into the extension 7 of the burner, which is inserted in the base of the forge, at one side thereof.

It is obvious that the greater the force of the air as it passes through the pipe 2, the more gas will be drawn into said pipe, and the hotter the flame in the forge will be.

In practice, I have found that the form of my invention, illustrated in the drawing and referred to in the above description, is most efficient and practical, but I desire to emphasize the fact that various minor changes in the details of construction, and arrangement of parts may be made when required, without sacrificing any of the advantages of my invention as set forth.

What I claim'and desire to secure by Letters Patent is 1. A gas burner comprising an outer pipe, bent at right angles at one end, and provided with a gas connection, an inner pipe having its ends expanded and attached to said outer pipe, forming a chamber between the two, said inner pipe being provided with spirally arranged openings, and means for forcing a blast of air through the central pipe, whereby the gas and air may be mixed thoroughly and led to the point of combustion.

2. The combination With a forge, of a burner comprising an outer pipe provided with a gas inlet at one end, and an extension leading intothe' forgeat the other, an

5 inner pipe having its ends expanded and attached to said outer pipe, forming a closed chamber, said inner pipe being provided with spirally arranged openings and means for forcing a blast of air through the inner pipe, whereby the gas and air may be mixed l0 thoroughly in the inner pipe and conducted to the forge. In testimony whereof I aifix my signature.

. EARLE A. CLARK. 

